9.03 Mass transfer at interfaces to nonaqueous phases (Marangoni)

Research

Transport in porous media is relevant in many environmental and technical applications. Mass transfer rates in multiphase systems are controlled by the spatial extent and accessibility ofinterfaces and their properties. Using microfluidic channels and advanced experimental techniques, it is now possible to measure the fluid flow and mass transfer rates at these interfacesdirectly. Thus, it is possible to progress from lumped effective mass transfer rates to single interface kinetics. Joining experimental and numerical expertise this proposal quantifies the effect of the Marangoni convection on the mass transfer rates at interfaces between a nonaqueous liquid and water with high temporal and spatial resolution. The results of this project will foster the understanding of subsurface transport, especially in the vadoze zone.

Publications

Wismeth, C., Manhart, M., Niessner, R., & Baumann, T. (2017) Quantification of the Mass Transfer at Fluid Interfaces in Microfluidic Channels, Geophysical Research Abstracts , 19, EGU General Assembly, Vienna. 2017.

Schanderl, W., Jenssen, U., Strobl, C., & Manhart, M. (2017). The structure and budget of turbulent kinetic energy in front of a wall-mounted cylinder. Journal of Fluid Mechanics, 827, 285-321. doi:10.1017

Schanderl, W., Jenssen, U. & Manhart, M. (2017) Near-Wall Stress Balance in Front of a Wall-Mounted Cylinder, Flow Turbulence Combust 99. doi: 10.1007/s10494-017-9865-3

Sun, T. & Manhart, M. (2015) Approximate exponential time integration for diffusion problems", GAMM 86th Annual Scientific Conference, Lecce, Italy,p 31. 2015.

 

Team

Project team leader

Dr. Daniel Quosdorf
Chair of Hydromechanics

Alumnus

Dr.-Ing. Wolfgang Schanderl
Chair of Hydromechanics

Doctoral researcher

Sayed Amininejad
Institute of Hydrochemistry

Alumnus

Dr.-Ing. Tianshi Sun
Chair of Hydromechanics

Alumna

Dr. rer. nat. Carina Wismeth
Institute of Hydrochemistry

Principal investigator

Professor Michael Manhart
Chair of  Hydromechanics

Principal investigator

PD Dr. Thomas Baumann
Institute of Hydrochemistry